1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)dump.h 8.2 (Berkeley) 4/28/95 32 */ 33 34 /* 35 * Dump maps used to describe what is to be dumped. 36 */ 37 extern int mapsize; /* size of the state maps */ 38 extern char *usedinomap; /* map of allocated inodes */ 39 extern char *dumpdirmap; /* map of directories to be dumped */ 40 extern char *dumpinomap; /* map of files to be dumped */ 41 /* 42 * Map manipulation macros. 43 */ 44 #define SETINO(ino, map) \ 45 map[(u_int)((ino) - 1) / CHAR_BIT] |= \ 46 1 << ((u_int)((ino) - 1) % CHAR_BIT) 47 #define CLRINO(ino, map) \ 48 map[(u_int)((ino) - 1) / CHAR_BIT] &= \ 49 ~(1 << ((u_int)((ino) - 1) % CHAR_BIT)) 50 #define TSTINO(ino, map) \ 51 (map[(u_int)((ino) - 1) / CHAR_BIT] & \ 52 (1 << ((u_int)((ino) - 1) % CHAR_BIT))) 53 54 /* 55 * All calculations done in 0.1" units! 56 */ 57 extern char *disk; /* name of the disk file */ 58 extern char *tape; /* name of the tape file */ 59 extern char *popenout; /* popen(3) per-"tape" command */ 60 extern char *dumpdates; /* name of the file containing dump date info */ 61 extern int lastlevel; /* dump level of previous dump */ 62 extern int level; /* dump level of this dump */ 63 extern int uflag; /* update flag */ 64 extern int diskfd; /* disk file descriptor */ 65 extern int pipeout; /* true => output to standard output */ 66 extern ino_t curino; /* current inumber; used globally */ 67 extern int newtape; /* new tape flag */ 68 extern int density; /* density in 0.1" units */ 69 extern long tapesize; /* estimated tape size, blocks */ 70 extern long tsize; /* tape size in 0.1" units */ 71 extern int etapes; /* estimated number of tapes */ 72 extern int nonodump; /* if set, do not honor UF_NODUMP user flags */ 73 extern int unlimited; /* if set, write to end of medium */ 74 extern int cachesize; /* size of block cache in bytes */ 75 extern int rsync_friendly; /* be friendly with rsync */ 76 extern int notify; /* notify operator flag */ 77 extern int blockswritten; /* number of blocks written on current tape */ 78 extern int tapeno; /* current tape number */ 79 extern int ntrec; /* blocking factor on tape */ 80 extern long blocksperfile; /* number of blocks per output file */ 81 extern int cartridge; /* assume non-cartridge tape */ 82 extern char *host; /* remote host (if any) */ 83 extern time_t tstart_writing; /* when started writing the first tape block */ 84 extern time_t tend_writing; /* after writing the last tape block */ 85 extern int passno; /* current dump pass number */ 86 extern struct fs *sblock; /* the file system super block */ 87 extern long dev_bsize; /* block size of underlying disk device */ 88 extern int dev_bshift; /* log2(dev_bsize) */ 89 extern int tp_bshift; /* log2(TP_BSIZE) */ 90 91 /* operator interface functions */ 92 void broadcast(const char *message); 93 void infosch(int); 94 void lastdump(int arg); /* int should be char */ 95 void msg(const char *fmt, ...) __printflike(1, 2); 96 void msgtail(const char *fmt, ...) __printflike(1, 2); 97 int query(const char *question); 98 void quit(const char *fmt, ...) __printflike(1, 2); 99 void timeest(void); 100 time_t unctime(char *str); 101 102 /* mapping rouintes */ 103 union dinode; 104 int mapfiles(ino_t maxino, long *tapesize); 105 int mapdirs(ino_t maxino, long *tapesize); 106 107 /* file dumping routines */ 108 void blkread(ufs2_daddr_t blkno, char *buf, int size); 109 ssize_t cread(int fd, void *buf, size_t nbytes, off_t offset); 110 void dumpino(union dinode *dp, ino_t ino); 111 void dumpmap(char *map, int type, ino_t ino); 112 void writeheader(ino_t ino); 113 114 /* tape writing routines */ 115 int alloctape(void); 116 void close_rewind(void); 117 void dumpblock(ufs2_daddr_t blkno, int size); 118 void startnewtape(int top); 119 void trewind(void); 120 void writerec(char *dp, int isspcl); 121 122 void Exit(int status) __dead2; 123 void dumpabort(int signo) __dead2; 124 void dump_getfstab(void); 125 126 char *rawname(char *cp); 127 union dinode *getino(ino_t inum, int *mode); 128 129 /* rdump routines */ 130 #ifdef RDUMP 131 void rmtclose(void); 132 int rmthost(const char *host); 133 int rmtopen(const char *tape, int mode); 134 int rmtwrite(const char *buf, int count); 135 #endif /* RDUMP */ 136 137 void interrupt(int signo); /* in case operator bangs on console */ 138 139 /* 140 * Exit status codes 141 */ 142 #define X_FINOK 0 /* normal exit */ 143 #define X_STARTUP 1 /* startup error */ 144 #define X_REWRITE 2 /* restart writing from the check point */ 145 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 146 147 #define OPGRENT "operator" /* group entry to notify */ 148 149 struct fstab *fstabsearch(const char *key); /* search fs_file and fs_spec */ 150 151 #ifndef NAME_MAX 152 #define NAME_MAX 255 153 #endif 154 155 /* 156 * The contents of the file _PATH_DUMPDATES is maintained both on 157 * a linked list, and then (eventually) arrayified. 158 */ 159 struct dumpdates { 160 char dd_name[NAME_MAX+3]; 161 int dd_level; 162 time_t dd_ddate; 163 }; 164 extern int nddates; /* number of records (might be zero) */ 165 extern struct dumpdates **ddatev; /* the arrayfied version */ 166 void initdumptimes(void); 167 void getdumptime(void); 168 void putdumptime(void); 169 #define ITITERATE(i, ddp) \ 170 if (ddatev != NULL) \ 171 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 172 173 #define DUMPFMTLEN 53 /* max device pathname length */ 174 #define DUMPOUTFMT "%-*s %d %s" /* for printf */ 175 /* name, level, ctime(date) */ 176 #define DUMPINFMT "%s %d %[^\n]\n" /* inverse for scanf */ 177 178 void sig(int signo); 179 180 #ifndef _PATH_FSTAB 181 #define _PATH_FSTAB "/etc/fstab" 182 #endif 183